Articulator for phonographs



I F. 8. LONG. ARTICULATOR FOR PHONOGRAPHS. APPLICATION FILED SEPT. 29, 1919.

1,352,291. PawntedSept. 7,1920.

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A NORA/E1 6 II n TAT-es P Arum OFFICE.

' N QJALEFORNIIL.

ULATOR F012, PHC IZ'QGRALHE.

1, iiifklln 3 $116 v groo e :2!) formed by u svrev or other i to iiie framework 18. Scrm I the bridge 21 and screw in or: i. to xert rear: 11 e are on. L

1 nee an edgrew i no froi r T me one, in

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,. is ion )ruce or other highly vibrant n1; e tone is mnpiifieai and the sound board is neferably ion produced. provided with rim of a harder material "her object is to orovide the soumi than that of which the sound boom is n'iucie 7 G of we phonograph into n sound 'hiy vibrant material and subewise pressure to is E crown board with is View insure with a, View to'throw molecular vibrations anion-ai ing from the sound board back onto the same.

In the modified form shown in Fig. 5 he bridge &0 used 'for exerting: edgewise eet to throw back upon the pressure on the sound board 4:1. is engaged 1 molecular vibrations emsny ures-lure screws 50serewing in s post-51 sound mm-s; forni a part of the framewo k of the Inn oti: r or" eats 1" Y1Q.J,M1B chine, It is understood that; rile pressure of sorta n no matures n t 6 screws 50 are used for giving a crow sound boar 41. It is under-st m1 different deg of pressure In b edgewise against the sound boi-n'ri to give the desired crown to the some to amplify the tone and increase tilt? (iistinctness of the shown and y ponitecl our r. as hereinuifi'r 'E and then speoln-eui so that exerted embodiment of the invention 7 the uecompun mg draw i1 part of on specification, in

is enune 2' on. up H) {q "L 1 1 1.x u 1 worse 1 reieiieo we. i one sounu noun L2; lmJLELIl ,eu A a v. ews. r on us g urt of one of the W211i: HEROES oi the Ir. me unci cnznnber 11, I do not ilfilli} my machine; to this construct; 21s the sound fourd be rigged within in 1nd chamber I'D he sound board is 1 tzo under side Wi U invention, I 2 to secure by Letters ciao-graph 10, shown in oueiine in 1. L"; a sound recording or unri repro- 1s, in its: sound reproducing means, dueing machine a sound chamber provided 10 uni construction, and this uni chine wither sound board, and means ior exerting 5' a, soruici chamber 31 greuuedgewise pressure on the said sound in size i'ron its entzmnce end board to form a crown. thereon. zutie'b or mo Any 2. In sound recordingor sound. repro- 011 ciucing whine, a sound ciminber for the age of sounds to be recorded or re least one of the Willis of the mining a sound board and means pressure eifigewise on with a, sound board of a highly vibrant material, and tensioning means exerted edgewise "on the said hoard to form o crown thereon.

i. In a sound recording or sound reproducing machine, a sound chamber provided with a sound board oi :i highly vibrant inoterinl and having :1 rim of a harder material than that of which the sound board is made, and tensioning means exerted edgewise on the said hoard to form a crown thereon.-

ln :1 sound recording and sound reproducingr noriiine, ll sound chamber gradually increasing in size from its "throat to its mouth. a portion of one of the walls of the said sound chamber forming a sound board,

' and means exerted odgewise on the said sound board to form a crown on the some. 7

6. 3.11 a sound recording and sound reproducing nmohinei a souiul'chauiher gradually increasing; in size from its throat to its mouth, a portion of one of the walls of the said sound chamber forming a sound board, a block against which almts one side edge ,see eoi of the Said sound heard, a bridge engaged by on opposite edge or the sound hoard. and pressure means exerted on the said bridge to form a crown on the said sound board.

7.. in zi'sound recording and sound. reproducing machine. a sound chamber gradually increasing in size from its throat to its mouth, a portion of one o1 the walls of said sound chamber forming a. sound board, a, block against which abuts one side edge of the said sound hoard a bridge engaged by an opposite edge of the sound board, and screw rods srrewing in the said hloelr end enrravin r the -said hrid e to exert u )ressuro r, o b

edgewise on the said sound board to form a ero r-vn' thereon.

8. in a sound recording and reproducing mechanism, a sound chamber, a sound board in one of the walls of the chamber, said sound hoard having on its under side longitudinaliyextending ribs, and means for applying pressure to one edge of the board to buckle the some. 1

FRANK BEN "i u 

